GA-MEB/Prework_Assessment.md

## Prework_Assessment.md

      
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              Prework_Assessment.md
            
          
    Web Development Immersive :: Pre-work Assessment

INSTRUCTIONS

You have 60 minutes to complete this quiz - please open this form in a new tab and submit your answers there.
Q-01
 
What would happen if someone entered the following command into the bash terminal?
`rm -r ~/GA_Projects`
Q-02

Suppose your present working directory is `/Users/someuser/Desktop/images`. What command(s) could you enter into the terminal to display all files (including hidden ones) in `Desktop`?
Q-03

Explain the difference between relative and absolute addresses in a filesystem. When might it be important to use one vs the other?   
Q-04

Please describe the difference between a client and a server in the context of loading a webpage.
Q-05

Consider the following CSS.
```CSS
.class1 {
  font-size: 10px;
}
.class2 {
  color: yellow;
  font-size: 75px;
}
div p {
  color: blue;
  font-size: 50px;
}
p {
  color: red;
}
#specialP {
  color: orange;
  font-style: italic;
}
```
For the following HTML code, what will be the color and size of "HELLO WORLD"? Why? 
```HTML
 
   HELLO WORLD 

```
Q-06 to Q-11

Consider the following Ruby code. It uses a tool called `Pry` to pause the program at specific points, called "breakpoints".
```ruby
require 'pry'   # Include Pry in our program.
a = 14
b = 25
a = b - a
binding.pry     # First breakpoint
c = 4
d = 7
e = c + d
c = 1
binding.pry     # Second breakpoint
f = (g = 2) + 1
g = (f == 2)
binding.pry     # Third breakpoint
h = true
if !h
i = 23
else
i = 11
end
binding.pry     # Fourth breakpoint
j = 3
def f(x)
2*x
end
j = f(j) + f(f(j)) + f(f(f(j)))
binding.pry     # Fifth breakpoint
while a > 0
puts "Hello"
a -= 2
end
<h3>Q-06</h3>
What are the values of `a` and `b` when the program hits the first breakpoint? Why?
<h3>Q-07</h3>
What are the values of `c`, `d` and `e` by the second breakpoint? Why?
<h3>Q-08</h3>
What are the values of `f` and `g` by the third breakpoint? Why?
<h3>Q-09</h3>
What are the values of `h` and `i` by the fourth breakpoint? Why?
<h3>Q-10</h3>
What is the value of `j` by the fifth breakpoint? Why?
<h3>Q-11</h3>
By the end of the program, what is the final value of `a`, and how many times has "Hello" been printed to the terminal?

<h3>Q-12</h3> 
Write a method in Ruby called "type_it_x_times" that takes in a number `X` as input and **returns** a string containing that number `X` times in a row. Assume `X` will always be greater than or equal to 1.

e.g. <br />
```ruby
type_it_x_times(1)
 => "1"
type_it_x_times(4)
 => "4444"
type_it_x_times(7)
 => "7777777"


Q-13

GitHub provides a workflow for creating a new repository:
```markdown
 1. touch README.md 
 2. git init
 3. git add README.md
 4. git commit-m "first commit"
 5. git remote add origin git@github.com:some_username/some_repo.git
 6. git push -u origin master
```
Describe what each command does, line by line.